Flap over Arabic calligraphy prompts US school closure

With the US already on edge after the California attacks, officials have cancelled lessons on Arabic calligraphy - and shut schools early for winter break - after complaints from parents that their children could be indoctrinated with Islamic beliefs.

Administrators in Augusta county in the state of Virginia closed for winter break early on Friday after threats of violence.

Over 10,000 students were affected by the closures, which officials said they were forced into after receiving thousands of hostile emails and social media posts.

The calligraphy assignment that caused the outrage asked students of Riverheads High School to draw out the Islamic declaration of faith - or Shahada - as part of a comparative religion class.

How one Arabic calligraphy lesson led to the shut down of an entire Virginia school district: https://t.co/jCNOeYPHqs

The lesson was intended to help students appreciate the Arabic calligraphic style, often expressed in Islamic religious texts.

While some parents complained the class was trying to convert their children to Islam, others said the controversy was a symptom of anti-Muslim sentiment that was fuelled by the ongoing Republican presidential race.

During Tuesday's Republican debate, candidates referred to "Islamic terrorism" more than a dozen times and mentioned ISIL almost 90 times.

Leading candidate Donald Trump has made no secret of his intention to ban Muslim immigration and close down mosques, should he be elected.